| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have a [adj] effect | 472 |
|
| 2 | have had a [adj] | 271 |
|
| 3 | had a [adj] effect | 162 |
|
| 4 | have had [adj] effect | 13 |
|
| 5 | have had a effect | 10 |
|
